Expert Electronics PX8.2 8-Channel Car Audio DSP

Take control of your car audio system, channel by channel

The Expert Electronics PX8.2 combines digital signal processing, equalization, and crossover functions in one car audio processor. With two inputs and eight independently programmable outputs, it gives your installer tools to route and tune signals across a multi-amplifier system.

Picture your next listening session after each channel's level, equalization, and timing have been adjusted to your installation. The digital display and rotary encoder provide access to settings, while channel-specific controls support a more deliberate tuning process.

Key Benefits

• Route two input signals to eight independently configurable output channels.
• Shape the input signal with a 15-band equalizer and fine-tune individual channels with three-band parametric EQ.
• Adjust delay, gain, polarity, and mute independently by channel.
• Configure automatic or manual limiting with threshold, attack, and decay controls.
• Use the pink-noise generator during system setup.
• Save settings in presets and restrict access with a user password.

Processing and Control Features

• Digital crossover and channel routing
• 15-band input equalizer, described in the source as having 1/3-octave spacing
• Three independent parametric EQ bands per channel
• Independent channel delay and gain
• Input gain adjustment
• Polarity inversion and independent channel mute
• Automatic or manual limiter
• Pink-noise generator
• Settings presets and user password
• Digital display and rotary encoder

Specifications / Key Features

• Brand: Expert Electronics
• Model: PX8.2
• Product type: Car audio digital signal processor
• Inputs: 2
• Outputs: 8 independent channels
• Connections: RCA, unbalanced input
• Input impedance: 47k ohms
• Output impedance: 470 ohms
• Resolution: 24-bit
• Sampling frequency: 48kHz
• Processing latency: 1.08ms
• Frequency response: 15Hz–22kHz (-1dB)
• Maximum THD+N: 0.01%
• Signal-to-noise ratio: 100dB
• Operating voltage: 10–15V DC
• Listed consumption: 300mA; the source also lists 5W
• Listed fuse: 2A
• Remote output: 300mA
• Approximate device dimensions: 25 × 12 × 3cm

Package Contents and Warranty

The existing listing specifies one PX8.2 processor, an instruction manual, and a one-year warranty. Refer to the supplied warranty documentation for coverage and conditions.

Compatibility and Installation

The PX8.2 processes audio signals; it is not a power amplifier and does not directly drive speakers. Use it with compatible source equipment and external amplifiers.

Professional installation and tuning are recommended. Verify connections, power supply, remote-output limits, fuse requirements, and processing settings against the manufacturer's manual. Set crossovers and limiters according to the connected speakers and amplifiers.

Bring channel-by-channel control to your next car audio build with the PX8.2.